Supports Intel Sky Lake-U or Kaby Lake-U processors (BGA 1356P). Memory: Dual DDR4 SODIMM slots.
: Pairing the Rev 2.0 schematic with a corresponding Boardview file (available at LaptopServiz ) allows you to trace physical connections that aren't visible on the PCB. Common Issues & Troubleshooting
: 19V stops right at the first or second MOSFET. The laptop behaves as if it has no battery or charger connected.
For a 2-digit or multi-digit system, a multiplexed design is the superior approach. It's more efficient and keeps your schematic clean.
In the world of hardware design, a schematic is more than a blueprint; it is the genetic code of a device. For those who have worked with the LAE801P power regulation module, the debate over which revision is "better" is surprisingly heated. While Revision 15 was functional and Revision 18 was stable, is not merely an update—it is a philosophical shift from operational design to resilient design. Here is why Rev 20 is objectively superior.
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. HP 15-BS LA-E801P I5-7200U UMA Laptop Motherboard
: Before injecting voltage into any unpowered rail to find a short circuit, check your resistance to ground. Never inject more voltage than a power rail is designed to handle (e.g., limit injection to 1.0V maximum when diagnosing a short on a low-voltage CPU or memory rail to avoid frying sensitive silicon).
The "Rev 20" designation indicates a . In electronics manufacturing, revision numbers track changes to a design over time. A Rev 20 schematic could incorporate:
| Pitfall | Prevention Strategy | |---------|---------------------| | Missing connections | Use a checklist; trace each net twice | | Component orientation errors | Photograph the PCB from multiple angles | | Wrong reference designators | Mark the PCB with temporary labels during tracing | | Forgetting decoupling capacitors | Always check both sides of IC power pins | | Inconsistent ground symbols | Establish a ground symbol standard before starting |
Sometimes these boards are referred to by the laptop model (e.g., ) or the Compal internal name ( BSL50/BSL52 power rail diagram for this motherboard? La E801p | PDF - Scribd
From analyzing three different physical Rev 20 boards and partial OEM schematics, the following critical issues were identified:
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Supports Intel Sky Lake-U or Kaby Lake-U processors (BGA 1356P). Memory: Dual DDR4 SODIMM slots.
: Pairing the Rev 2.0 schematic with a corresponding Boardview file (available at LaptopServiz ) allows you to trace physical connections that aren't visible on the PCB. Common Issues & Troubleshooting
: 19V stops right at the first or second MOSFET. The laptop behaves as if it has no battery or charger connected. lae801p rev 20 schematic better
For a 2-digit or multi-digit system, a multiplexed design is the superior approach. It's more efficient and keeps your schematic clean.
In the world of hardware design, a schematic is more than a blueprint; it is the genetic code of a device. For those who have worked with the LAE801P power regulation module, the debate over which revision is "better" is surprisingly heated. While Revision 15 was functional and Revision 18 was stable, is not merely an update—it is a philosophical shift from operational design to resilient design. Here is why Rev 20 is objectively superior. Supports Intel Sky Lake-U or Kaby Lake-U processors
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. HP 15-BS LA-E801P I5-7200U UMA Laptop Motherboard
: Before injecting voltage into any unpowered rail to find a short circuit, check your resistance to ground. Never inject more voltage than a power rail is designed to handle (e.g., limit injection to 1.0V maximum when diagnosing a short on a low-voltage CPU or memory rail to avoid frying sensitive silicon). Common Issues & Troubleshooting : 19V stops right
The "Rev 20" designation indicates a . In electronics manufacturing, revision numbers track changes to a design over time. A Rev 20 schematic could incorporate:
| Pitfall | Prevention Strategy | |---------|---------------------| | Missing connections | Use a checklist; trace each net twice | | Component orientation errors | Photograph the PCB from multiple angles | | Wrong reference designators | Mark the PCB with temporary labels during tracing | | Forgetting decoupling capacitors | Always check both sides of IC power pins | | Inconsistent ground symbols | Establish a ground symbol standard before starting |
Sometimes these boards are referred to by the laptop model (e.g., ) or the Compal internal name ( BSL50/BSL52 power rail diagram for this motherboard? La E801p | PDF - Scribd
From analyzing three different physical Rev 20 boards and partial OEM schematics, the following critical issues were identified:
